Contents

module MetaManager
  module Taggable
    extend ::ActiveSupport::Concern
    
    included do          
      has_many :meta_tags, :as => :taggable, :dependent => :destroy, :autosave => true
        
      accepts_nested_attributes_for :meta_tags, :reject_if => proc { |tag| tag['content'].blank? }, :allow_destroy => true
    end
       
    # Save meta tags records into one hash
    def meta_tag(attr_name, options={})
      key = normalize_meta_tag_name(attr_name)
      
      cached_meta_tags[key] ||= self.meta_tags.detect {|t| t.name == key}
      cached_meta_tags[key] ||= self.meta_tags.build(:name => key) if options[:build]
      cached_meta_tags[key]
    end

    def cached_meta_tags
      @cached_meta_tags ||= {}
    end
    
    def respond_to?(method_sym, include_private = false)
      if method_sym.to_s =~ meta_match_case
        true
      else
        super
      end
    end
    
    protected
      
      def normalize_meta_tag_name(value)
        value.to_s.downcase.strip.gsub("_before_type_cast", '').gsub(/=$/, '')
      end
      
      def method_missing(method, *args, &block)
        key = method.to_s
        
        if key =~ meta_match_case
          attr_name = key.gsub(meta_match_case, '')
          
          if key =~ /=$/ && !args.first.blank?
            record = meta_tag(attr_name, :build => true)
            record.content = args.first
          else 
            meta_tag(attr_name).try(:content)
          end
        else
          super
        end
      end
      
      def meta_match_case
        /^tag_/
      end
  end
end

Version data entries

8 entries across 7 versions & 2 rubygems

Version	Path
meta_manager-0.2.2	lib/meta_manager/taggable.rb
meta_manager-0.2.1	lib/meta_manager/taggable.rb
meta_manager-0.2.0	lib/meta_manager/taggable.rb
sunrise-cms-0.5.0.rc1	vendor/bundle/ruby/1.9.1/gems/meta_manager-0.1.1/lib/meta_manager/taggable.rb
sunrise-cms-0.5.0.rc1	vendor/bundle/ruby/1.9.1/gems/meta_manager-0.0.8/lib/meta_manager/taggable.rb
meta_manager-0.1.1	lib/meta_manager/taggable.rb
meta_manager-0.1.0	lib/meta_manager/taggable.rb
meta_manager-0.0.8	lib/meta_manager/taggable.rb